A continuation of the FindAnyFloor Article Formaldehyde Emission Stkamurds for Green Adhesives E and E are the European formaldehyde emission stkamurds. E emission stkamurds are well known in the flooring industry, and have been used for years. Wood flooring adhesives that meet E formaldehyde stkamurds have less than . formaldehyde parts per million ppm ..